Ubale, Sanjay, et al. “Effect of Temperature and Media on the Complexation of Sm(III) With 5-Bromo-2 Hydroxy Acetophenone ”. Asian Journal of Chemistry, vol. 14, no. 1, Mar. 2010, pp. 99-102, https://asianpubs.org/index.php/ajchem/article/view/21957.